
PCI Express 3.0 Specification Changes
New 12GHz oscilloscope maximum bandwidth specification
De-embedding required (pin is reference for TX testing)
CTLE + DFE (1 tap) Reference Receiver
New jitter measurements for TX (Uncorrelated Jitter, Uncorrelated PWJ)
Separate Channel Specification
TX equalization space greatly expanded
TXRX back channel established for tuning TX EQ settings maximizing
RX EQ performance
Updated Reference Clock phase jitter requirements
Calibration of RX jitter stress signal must account for calibration
instrument (Oscilloscope) noise floor.
New Compliance Patterns (TX and RX)
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